GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Heated Seats Schematics

1

Did you review the Heated Seats Description and Operation?

Go to Step 2

Go to Symptoms - Seats

2

Operate the heated seat system.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Disconnect the heated seat switch connector.

Does the seat stop heating?

Go to Step 7

Go to Step 5

5

Test heated seat switch signal circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 8

Go to Step 6

6

Replace the seat cushion heater element assembly. Refer to Driver Seat and Passenger Seat Cushion Heater Replacement .

Did you complete the replacement?

Go to Step 8

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7

Replace the heated seat switch. Refer to Front Seat Heater Switch Replacement .

Did you complete the replacement?

Go to Step 8

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8

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2